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Osadchuk I, Luts HE, Norvaiša K, Borovkov V, Senge MO. Supramolecular Chirogenesis in a Sterically Hindered Porphyrin: A Critical Theoretical Analysis. Chemistry 2023; 29:e202301408. [PMID: 37227167 DOI: 10.1002/chem.202301408] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 05/26/2023]
Abstract
The determination of molecular stereochemistry and absolute configuration is an important part of modern chemistry, pharmacology, and biology. Electronic circular dichroism (ECD) spectroscopy is a widely used tool for chirality assignment, especially with porphyrin macrocycles employed as reporter chromophores. However, the mechanisms of induced ECD in porphyrin complexes are yet to be comprehensively rationalized. In this work, the ECD spectra of a sterically hindered hexa-cationic porphyrin with two camphorsulfonic acids in dichloromethane and chloroform were experimentally measured and computationally analyzed. The influence of geometric factors such as the position of chiral guest molecules, distortion of the porphyrin macrocycle, and orientation of aromatic and non-aromatic peripheral substituents on the ECD spectra was theoretically studied. Various potential pitfalls, such as a lack of significant conformations and accidental agreement of experimental and simulated spectra, are considered and discussed.
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Affiliation(s)
- Irina Osadchuk
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15, 12618, Tallinn, Estonia
| | - Hanna-Eliisa Luts
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15, 12618, Tallinn, Estonia
| | - Karolis Norvaiša
- School of Chemistry, Chair of Organic Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse Street, D02R590, Dublin, Ireland
| | - Victor Borovkov
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15, 12618, Tallinn, Estonia
| | - Mathias O Senge
- School of Chemistry, Chair of Organic Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse Street, D02R590, Dublin, Ireland
- Institute for Advanced Study (TUM-IAS), Technical University of Munich, Lichtenberg Str. 2a, 85748, Garching, Germany
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Iftikhar R, Zahoor AF, Ahmad S, Haq AU, Naheed S. Revisiting the Synthesis of Betti Bases: Facile, One-pot, and Efficient Synthesis of Betti Bases Promoted by FeCl3•6H2O. Curr Org Synth 2022; 19:569-577. [PMID: 35086451 DOI: 10.2174/1570179419666220127144352] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/06/2021] [Accepted: 12/18/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Betti bases are pharmaceutically and synthetically important scaffolds due to their diverse range of biological activities and applications in key synthetic transformations in organic synthesis. OBJECTIVE This work has been sought to contribute to the development, design, and implementation of an improved green methodology with higher atom economy and lower E-factor values for the synthesis of Betti bases. METHOD To realize our objectives, we screened out different catalysts and reaction conditions using one-pot multicomponent modified Mannich reaction/Betti reaction by employing 2-naphthol, benzaldehyde and pyrrolidine as model substrates. RESULTS The developed methodology afforded functionalized Betti bases via FeCl3•6H2O catalyzed one-pot multicomponent Betti reaction under neat conditions at 110 °C (5-15 min) to afford functionalized Betti bases by using several aromatic aldehydes and secondary amines in 60-100% yields. CONCLUSION A facile synthetic methodology with higher atom economy and lower E-factor values to synthesize Betti bases via FeCl3•6H2O catalyzed one-pot multicomponent Betti reaction of 2-naphthol, aromatic aldehydes, and secondary amines under neat conditions at 110 °C has been reported. The developed methodology offers various advantages such as excellent yields (60-100%), short reaction time (5-15 min), wide substrate scope (12 examples), green reaction conditions, readily available catalyst, and easy purification (without column chromatography).
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Affiliation(s)
- Ramsha Iftikhar
- Department of Chemistry, Government College University Faisalabad, 38000-Faisalabad, Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, 38000-Faisalabad, Pakistan
| | - Sajjad Ahmad
- Department of Chemistry, University of Engineering and Technology Lahore, Faisalabad Campus, 38000-Faisalabad, Pakistan
| | - Atta Ul Haq
- Department of Chemistry, Government College University Faisalabad, 38000-Faisalabad, Pakistan
| | - Shazia Naheed
- Department of Chemistry, Government College University Faisalabad, 38000-Faisalabad, Pakistan
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Joaquim AR, Gionbelli MP, Gosmann G, Fuentefria AM, Lopes MS, Fernandes de Andrade S. Novel Antimicrobial 8-Hydroxyquinoline-Based Agents: Current Development, Structure-Activity Relationships, and Perspectives. J Med Chem 2021; 64:16349-16379. [PMID: 34779640 DOI: 10.1021/acs.jmedchem.1c01318] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The search for new antimicrobials is imperative due to the emergent resistance of new microorganism strains. In this context, revisiting known classes like 8-hydroxyquinolines could be an interesting strategy to discover new agents. The 8-hydroxyquinoline derivatives nitroxoline and clioquinol are used to treat microbial infections; however, these drugs are underused, being available in few countries or limited to topical use. After years of few advances, in the last two decades, the potent activity of clioquinol and nitroxoline against several targets and the privileged structure of 8-hydroxyquinoline nucleus have prompted an increased interest in the design of novel antimicrobial, anticancer, and anti-Alzheimer agents based on this class. Herein, we discuss the current development and antimicrobial structure-activity relationships of this class in the perspective of using the 8-hydroxyquinoline nucleus for the search for novel antimicrobial agents. Furthermore, the most investigated molecular targets concerning 8-hydroxyquinoline derivatives are explored in the final section.
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Affiliation(s)
- Angélica Rocha Joaquim
- Pharmaceutical Synthesis Group (PHARSG), Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Azenha, Porto Alegre, RS 90610-000, Brazil.,Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Azenha, Porto Alegre, RS 90610-000, Brazil
| | - Mariana Pies Gionbelli
- Pharmaceutical Synthesis Group (PHARSG), Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Azenha, Porto Alegre, RS 90610-000, Brazil.,Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Azenha, Porto Alegre, RS 90610-000, Brazil
| | - Grace Gosmann
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Azenha, Porto Alegre, RS 90610-000, Brazil
| | - Alexandre Meneghello Fuentefria
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Azenha, Porto Alegre, RS 90610-000, Brazil.,Programa de Pós-graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Sarmento Leite, 500, Farroupilha, Porto Alegre, RS 90050-170, Brazil
| | - Marcela Silva Lopes
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Azenha, Porto Alegre, RS 90610-000, Brazil
| | - Saulo Fernandes de Andrade
- Pharmaceutical Synthesis Group (PHARSG), Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Azenha, Porto Alegre, RS 90610-000, Brazil.,Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Azenha, Porto Alegre, RS 90610-000, Brazil.,Programa de Pós-graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Sarmento Leite, 500, Farroupilha, Porto Alegre, RS 90050-170, Brazil
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Osadchuk I, Borovkov V, Aav R, Clot E. Benchmarking computational methods and influence of guest conformation on chirogenesis in zinc porphyrin complexes. Phys Chem Chem Phys 2020; 22:11025-11037. [DOI: 10.1039/d0cp00965b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Different computational methods and influence of the guest conformation and solvent effect to analyze chirogenesis in zinc porphyrins by several chiral compounds have been investigated.
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Affiliation(s)
- Irina Osadchuk
- Department of Chemistry and Biotechnology
- Tallinn University of Technology
- Tallinn 12618
- Estonia
- ICGM, University of Montpellier
| | - Victor Borovkov
- Department of Chemistry and Biotechnology
- Tallinn University of Technology
- Tallinn 12618
- Estonia
- College of Chemistry and Materials Science
| | - Riina Aav
- Department of Chemistry and Biotechnology
- Tallinn University of Technology
- Tallinn 12618
- Estonia
| | - Eric Clot
- ICGM, University of Montpellier
- CNRS
- ENSCM
- Montpellier
- France
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Gaisina IN, Khristichenko AY, Gaisin AM, Smirnova NA, Gazaryan IG, Poloznikov AA. Antihypoxic activity of adaptaquin enantiomers. Russ Chem Bull 2019. [DOI: 10.1007/s11172-018-2376-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Harrell WA, Vieira RC, Ensel SM, Montgomery V, Guernieri R, Eccard VS, Campbell Y, Roxas-Duncan V, Cardellina JH, Webb RP, Smith LA. A matrix-focused structure-activity and binding site flexibility study of quinolinol inhibitors of botulinum neurotoxin serotype A. Bioorg Med Chem Lett 2016; 27:675-678. [PMID: 28043798 DOI: 10.1016/j.bmcl.2016.11.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 11/07/2016] [Accepted: 11/08/2016] [Indexed: 10/20/2022]
Abstract
Our initial discovery of 8-hydroxyquinoline inhibitors of BoNT/A and separation/testing of enantiomers of one of the more active leads indicated considerable flexibility in the binding site. We designed a limited study to investigate this flexibility and probe structure-activity relationships; utilizing the Betti reaction, a 36 compound matrix of quinolinol BoNT/A LC inhibitors was developed using three 8-hydroxyquinolines, three heteroaromatic amines, and four substituted benzaldehydes. This study has revealed some of the most effective quinolinol-based BoNT/A inhibitors to date, with 7 compounds displaying IC50 values ⩽1μM and 11 effective at ⩽2μM in an ex vivo assay.
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Affiliation(s)
- William A Harrell
- Division of Molecular and Translational Sciences, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States
| | - Rebecca C Vieira
- Division of Molecular and Translational Sciences, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States
| | - Susan M Ensel
- Department of Chemistry and Physics, Hood College, Frederick, MD 21701, United States
| | - Vicki Montgomery
- Division of Molecular and Translational Sciences, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States
| | - Rebecca Guernieri
- Division of Molecular and Translational Sciences, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States
| | - Vanessa S Eccard
- Division of Molecular and Translational Sciences, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States
| | - Yvette Campbell
- Division of Molecular and Translational Sciences, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States
| | - Virginia Roxas-Duncan
- Division of Molecular and Translational Sciences, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States
| | - John H Cardellina
- Division of Molecular and Translational Sciences, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States
| | - Robert P Webb
- Division of Molecular and Translational Sciences, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States.
| | - Leonard A Smith
- Medical Countermeasures Technology, Office of the Chief Scientist, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States
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